Dengue worldwide overview

Situation update, 17 January 2020

There has been a substantial increase in reports of dengue infections in 2019 compared with 2018. The majority of the cases was reported by Brazil, Mexico, Nicaragua, the Philippines and Malaysia.

Countries with most cases
Brazil, Mexico, Nicaragua, the Philippines and Malaysia
Travel-related cases in the EU/EEA expected
linked to travellers returning from affected areas
Low risk of transmission in the EU/EEA
due to the end of the transmission season, despite of sporadic locally acquired cases in France and Spain

Geographical distribution of dengue cases reported worldwide, October to December 2019

Geographical distribution of dengue cases reported worldwide, October to December 2019
Dengue cases reported worldwide, as of 16 January 2020

Detailed overview

Europe

In 2019, two EU Member States reported autochthonous cases of dengue: two cases in Spain and nine in France. At the beginning of November 2019, the Spanish authorities reported the probable sexual transmission of dengue between two MSM (men who have sex with men).

Americas and the Caribbean

In 2019, the Pan American Health Organization (PAHO) reported 3 104 000 suspected and confirmed dengue cases in the Americas Region. Brazil accounted for 71% of the cases (2 201 000, cases), recording a ten-fold increase compared with the same period in 2018 when 247 393 cases were reported. Highest incidence rates in the Region of the Americas were reported by Nicaragua, Belize, Antigua and Barbuda, Honduras and Brazil. The four dengue virus serotypes (DENV 1, DENV 2, DENV 3, and DENV 4) are currently circulating simultaneously in the Region of the Americas which increases the risk of severe cases.

According to Santé publique France, Guadeloupe has reported an increased number of cases: 775 confirmed and 3480 suspected cases since July 2019 and as of 26 December. For the same period in 2018, Guadeloupe had reported 352 cases.

The figures for each country of the Americas Region can be found in the PAHO Health Information Platform.

Asia

In 2019, most of the countries in Asia and South-East Asia observed a spike in their number of cases.

Bangladesh reported 101 354 cases in 2019, as of 31 December 2019, recording a ten-fold increase compared to 2018. The peak occurred in August and the number of cases is now showing a decreasing seasonal trend. 

Cambodia reported approximately 65 000 cases of dengue in 2019 and as of 21 December 2019. This represents a six-fold increase compared with the same period in 2018 when 9 885 cases were reported.

The Maldives officially reported 4 984 cases in 2019, as of 31 December 2019. 

According to the National Institute for Health, Pakistan reported 24 547 cases of dengue between the beginning of the year and 29 December 2019. For the same period in 2018, Pakistan reported 3 204 cases of dengue. 

Malaysia reported 127 407 cases, including 176 deaths, between January and 21 December 2019. This is higher than the 78 066 cases (with 140 deaths) reported during the same period last year.

The Philippines reported 420 453 dengue cases and 1 565 deaths as of 14 December 2019. Last year, for the same period, the country had recorded 199 271 cases. 

Singapore reported 16 003 cases in 2019, as of 28 December 2019, compared with 3 259 cases reported for the same period in 2018. 

Sri Lanka reported 103 924 cases in 2019, as of 31 December 2019, compared with 51 554 cases for the same period last year. Colombo, Gampaha and Kandy districts are the most affected areas.

Thailand reported 86 418 cases in 2019. The highest concentration of cases was in Chiang Rai and Ubon Ratchathani. Thailand reported 54 482 cases during the same period last year. 

Vietnam reported 320 702 cases in 2019, 54 of which were fatal. This represents a 2.5-fold increase on the same period in 2018 when 126 682 cases were reported.

There are no official updates for Afghanistan, India, Laos or Nepal.

Africa

Between January and 14 December 2019, Burkina Faso reported 7 980 cases, including 4 966 probable cases and 12 deaths (case fatality ratio 0.15%).

According to Sante Publique France, Réunion reported 18 206 confirmed dengue cases and 14 deaths between 1 January and 31 December 2019. Both serotypes are still circulating on the island. In recent weeks, the number of cases has significantly decreased. However, the conditions are now favourable for new cases to emerge. 

According to Sante Publique France, Mayotte reported 212 confirmed cases (autochthonous), between 30 March 2019 and 5 January 2020. Since the end of October, weekly numbers have been constantly increasing.

There were no new cases reported in Benin, Ethiopia or Mali.

Australia and the Pacific

Australia reported 1 419 cases of dengue as of 18 December 2019, compared with 917 cases for the same period in 2018. There has been a decreasing monthly trend since May and numbers remain within previous seasonal trends.

French Polynesia reported 3 137 autochthonous cases since the beginning of the year and as of 29 December 2019.

New Caledonia reported 3 914 dengue cases, including two deaths, since the beginning of the year and as of 17 December 2019. The number of cases reported weekly remains low. The epidemic was officially declared over at the end of August.

Data

Geographical distribution of dengue cases reported worldwide, 2019

Map -
Period: 01 Jan 2019 - 31 Dec 2019

Geographical distribution of dengue cases reported worldwide, 2019